About the behavior of neutron tenant_network_types and network_vlan_ranges in neutron configuration

Issue

• Question: why can we create a network which is not in the range of network_vlan_ranges (e.g. range 1:1000) as the admin user?
• How to create tenant networks of type vxlan and vlan at the same time (Example: tenant_network_types = vlan,gre,vxlan)